Sound-reproducing machine



F. CIRELLI.

SOUND REPRODUCING MACHINE. APPLICATION FILED AUG.8, I9I1.

1,326,709.. Patented Dec. 30,1919. I

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SOUND REPRODUCING MACHINE APPLICATION FILED Aus.s. 1911.

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FRANCESCO CIRELLI, 0F PHILADELPHIA, PENNSYLVANIA.

SOUND-REPBODUCING MACHINE.

Specification of Letters Patent.

Patented Dec. 30, 1919.

Application filed August a, 1917. Serial No. 185,000. A

To all whom it'may concern:

Be it known that I, Francesco CIRELLI, a Citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State-of Pennsylvania, have invented certain new and useful Improvements in Sound-Reproducing Machines, of which the following is a specification.

My invention relates to improvements in sound reproducing machines, the object of the invention being to dispense altogether with the ordinary horn and allow the end.

of the sound tube to be closed, by providing sound outlets in the wall of the sound tube which are controlled by a damper to goiern the volume of sound.

A further object is to provide a. sound reproducing machine which can be manufactured and sold at an extremely low price and which will most efliciently perform the functions for which it is. intended.

With these and other objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: 7

Figure 1 is a view in side elevation illustratingone form of my improvements.

Fig. 2 is a view in longitudinal section.

Fig. 3 is a. view in section on the line 33 of Fig. 1.

Fig. 4. is a plan View illustrating a modification.

Fig. 5 is a view in section on the line'55 of Fig. 4, and

Fig. 6 is a View in section on the line 6-6 of Fig. 1.

1 represents a supporting platform on which a stationary collar 2 is secured.

3 is a tone arm coupled to the stationary collar 2 by means of a coupling ring 4. The tone arm 3 carries at its free end the ordinary sound box 5 with its needle 6 engaging the record 7.

The collar 2 is providedwith a circular or annular series of slots 8 and a ring 9 fits the collar and is provided with slots 10, adapted to be moved into or out of register with slots 8.

A button 11 on ring 9 permits the easy movement of the ring, and a pin 12 on the collar 2 projects through a slot 13 in ring 9 and limits the movement of the ring.

It will be noted that the ring 9 acts as a damper and permits the outlet of sound to be controlled.

As the platform 1 effectively closes the end of the tone arm, the entire outlet of sound is through the slots 8 and 10, and this is readily controlled by the position of the ring 9.

VVhen my improven'ients are used in connection with a box 14 having a cover 19, it is necessary to provide some outlet for the sound when the cover is closed. ,This

modification is shown in Figs. 4, 5 and 6 where it will be noted that I provide a plurality of pipes or channels15 which connect a central chamber 16 around the tone arm, with openings 17 in the side walls 18 of box 14, hence when the cover of the box is closed the sound will find an outlet through the walls.

It will be noted that I dispense altogether with the use of the usual horn which ordinarily communicates with the outlet of the the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall Within the spirit and scope of the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A sound reproducing machine including a. platform; a collar secured upon said platform and having slots in its sides, said platform'providing an entire closure for the bottom of said collar; and atone arm, said collar having an upper portion shaped to provide a bearing upon which the delivery end of the tone arm is mounted. substan tially as described.

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2. A sound reproducing machine includsaid tone arm and the platform; substan- 10 ing a supporting platform; a tone arm; and tially as described. means secured to said platform and forming In testimony whereof I have signed my a bearing for the tone arm, said tone arm name to this specification in the presence of having a delivery opening spaced above and two subscribing witnesses.

directed toward said plat-form whereby the FRANCESCO CIRELLI. reproduced sound WaX'QS passing through lVitnesses: said tone arm will impinge upon and vibrate KATHRYN A. SUMMERS,

said platform and pass outwardly between AGNES M. COTTER. 

